10th International Conference on Telecommunications, 2003. ICT 2003.
This paper contributes to the issue of location-aided routing in ad-hoc wireless networks. It foc... more This paper contributes to the issue of location-aided routing in ad-hoc wireless networks. It focuses on the location-aided routing (LAR) protocol and its way of building the forwarding zone. A modified-LAR algorithm is proposed and three variants of it are examined. All of them are based on the idea of enlarging the request zone, in case of failure of the
ABSTRACT The rapid demand growth for group-oriented ser-vices mandates telco operators to efficie... more ABSTRACT The rapid demand growth for group-oriented ser-vices mandates telco operators to efficiently manage the con-temporary presence of the unicast services and the emerging multicast applications. We propose a novel radio resource man-agement approach for providing fair throughput to unicast and multicast users in a broadband wireless network. The idea is to assign unicast subscribers to a virtual group in order to compete on an equal footing with multicast users for network resource distribution. We also revisit the traditional fairness indexes in order to capture the fairness in the degree of user satisfaction for unicast and multicast users. Simulations highlight the effectiveness of the virtual group strategy in terms of achieved fairness in several scenarios and under different traffic loads.
2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007
In this paper we provide a general and repeatable experimental evaluation campaign of location al... more In this paper we provide a general and repeatable experimental evaluation campaign of location algorithms based on RSSI measures for active RFID systems. We start from the well-known LANDMARC approach and conduct a thorough investigation aiming at evaluating its actual potentials and limitations under different environmental conditions. For the sake of completeness, we compare its behavior with the one of
2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754), 2004
In the present paper a modular mechanism for QoS management over the return channel of DVB-RCS sa... more In the present paper a modular mechanism for QoS management over the return channel of DVB-RCS satellite platforms is proposed. Main aim of the study is to contribute to the standardization research efforts towards the definition of effective QoS management policies over DVB-RCS return channels. By exploiting the proposed solutions a DVB-RCS satellite system is able to keep the throughput
2014 Eleventh Annual IEEE International Conference on Sensing, Communication, and Networking (SECON), 2014
Named Data Networking (NDN) is a new architecture for the Future Internet that supports efficient... more Named Data Networking (NDN) is a new architecture for the Future Internet that supports efficient data delivery by directly using content names instead of IP addresses. This content-centric approach can be especially useful for IoT applications, where everyday objects embedding wirelessly connected constrained devices should be accessed, by both other machines and users. In such a context, we focus on the smart home domain and propose a framework called eDomus that (i) leverages functionalities by a popular social network, i.e., Facebook, to allow a user to remotely interact with the home network and (ii) is augmented with NDN concepts to properly monitor the domestic environment. In this paper, we present our framework and our preliminary prototype, by also providing some hints on future work.
2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010
AbstractA wide variety of applications aimed to im-prove road safety and traffic efficiency or t... more AbstractA wide variety of applications aimed to im-prove road safety and traffic efficiency or to provide com-fort/entertainment to passengers in vehicles are intended to be delivered in VANETs (Vehicular Ad hoc Networks) in the near future. Most of these applications require ...
The research on the Internet of Things (IoT) has made rapid strides towards the definition of a g... more The research on the Internet of Things (IoT) has made rapid strides towards the definition of a global network of interconnected objects. Some IETF Working Groups are giving major contributions in this direction by standardizing an IPv6-based framework for resource-constrained nodes. Although this solution handles different constrained networks' devices, it does not explicitly manage the integration with a key IoT enabler: the RFID (Radio Frequency Identification) technology. In this paper, we propose a CoAP-compliant solution where RFID tags are directly accessible via a reader that acts as a proxy. The RFID tags, behaving as virtual CoAP servers, are included in the IoT realm. Key design aspects are addressed such as tag addressing, service and resource discovery, and mapping of CoAP methods onto RFID commands. Finally, the performance of the proposed solution is evaluated in order to provide useful indications for future deployments.
The research on the Internet of Things (IoT) has made rapid strides towards the definition of a g... more The research on the Internet of Things (IoT) has made rapid strides towards the definition of a global network of interconnected objects. Some IETF Working Groups are giving major contributions in this direction by standardizing an IPv6-based framework for resource-constrained nodes. Although this solution handles different constrained networks' devices, it does not explicitly manage the integration with a key IoT enabler: the RFID (Radio Frequency Identification) technology. In this paper, we propose a CoAP-compliant solution where RFID tags are directly accessible via a reader that acts as a proxy. The RFID tags, behaving as virtual CoAP servers, are included in the IoT realm. Key design aspects are addressed such as tag addressing, service and resource discovery, and mapping of CoAP methods onto RFID commands. Finally, the performance of the proposed solution is evaluated in order to provide useful indications for future deployments.
This paper addresses the radio resource manage- ment of multicast transmissions in the emerging f... more This paper addresses the radio resource manage- ment of multicast transmissions in the emerging fifth gener- ation satellite systems (5G-Satellite). A subgrouping approach is exploited to provide video streaming services to satellite users by splitting any multicast group into subgroups. This allows an effective exploitation of multi-user diversity according to the experienced channel conditions and the achievement of a high throughput level. The main drawback is the high computational cost usually related to the selection of the opti- mal subgroup configuration. In this paper we propose a low- complexity subgrouping algorithm that achieves performance close to optimum. Our solution is suitable for implementation in practical systems, such as Satellite-Long Term Evolution (S- LTE), since the computational cost does not depend on the multicast group size and the number of available resources. Through simulation campaigns conducted in different radio propagation and multicast group en...
Multiple channels have been allocated in the 5 GHz spectrum for vehicular communications worldwid... more Multiple channels have been allocated in the 5 GHz spectrum for vehicular communications worldwide, however, due to the limited allocated bandwidth, simultaneous communications occurring over nearby channels may be affected by adjacent channel interference (ACI). Due to ACI, packet reception may be unsuccessful and transmissions may be delayed. In this work, we investigate the ACI phenomena in multichannel vehicular networks to shed light on their effects, with focus on the transmitter-side. To this purpose, a simple analytical model is introduced along with a preliminary evaluation. Suggestions are also provided about the usage of adjacent channels so to minimize side effects on the communication quality.
Proceedings of IEEE INFOCOM '96. Conference on Computer Communications, 1996
... service seems the most appropriate for the transport of a multimedia service in UMTS. ... wit... more ... service seems the most appropriate for the transport of a multimedia service in UMTS. ... with the main aims of providing: 0 a flexible DRMA bandwidth allocation control mechanism, able ... Anyway, during periods of high congestion of the reservation buffer, voice component can be ...
10th International Conference on Telecommunications, 2003. ICT 2003.
This paper contributes to the issue of location-aided routing in ad-hoc wireless networks. It foc... more This paper contributes to the issue of location-aided routing in ad-hoc wireless networks. It focuses on the location-aided routing (LAR) protocol and its way of building the forwarding zone. A modified-LAR algorithm is proposed and three variants of it are examined. All of them are based on the idea of enlarging the request zone, in case of failure of the
ABSTRACT The rapid demand growth for group-oriented ser-vices mandates telco operators to efficie... more ABSTRACT The rapid demand growth for group-oriented ser-vices mandates telco operators to efficiently manage the con-temporary presence of the unicast services and the emerging multicast applications. We propose a novel radio resource man-agement approach for providing fair throughput to unicast and multicast users in a broadband wireless network. The idea is to assign unicast subscribers to a virtual group in order to compete on an equal footing with multicast users for network resource distribution. We also revisit the traditional fairness indexes in order to capture the fairness in the degree of user satisfaction for unicast and multicast users. Simulations highlight the effectiveness of the virtual group strategy in terms of achieved fairness in several scenarios and under different traffic loads.
2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007
In this paper we provide a general and repeatable experimental evaluation campaign of location al... more In this paper we provide a general and repeatable experimental evaluation campaign of location algorithms based on RSSI measures for active RFID systems. We start from the well-known LANDMARC approach and conduct a thorough investigation aiming at evaluating its actual potentials and limitations under different environmental conditions. For the sake of completeness, we compare its behavior with the one of
2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754), 2004
In the present paper a modular mechanism for QoS management over the return channel of DVB-RCS sa... more In the present paper a modular mechanism for QoS management over the return channel of DVB-RCS satellite platforms is proposed. Main aim of the study is to contribute to the standardization research efforts towards the definition of effective QoS management policies over DVB-RCS return channels. By exploiting the proposed solutions a DVB-RCS satellite system is able to keep the throughput
2014 Eleventh Annual IEEE International Conference on Sensing, Communication, and Networking (SECON), 2014
Named Data Networking (NDN) is a new architecture for the Future Internet that supports efficient... more Named Data Networking (NDN) is a new architecture for the Future Internet that supports efficient data delivery by directly using content names instead of IP addresses. This content-centric approach can be especially useful for IoT applications, where everyday objects embedding wirelessly connected constrained devices should be accessed, by both other machines and users. In such a context, we focus on the smart home domain and propose a framework called eDomus that (i) leverages functionalities by a popular social network, i.e., Facebook, to allow a user to remotely interact with the home network and (ii) is augmented with NDN concepts to properly monitor the domestic environment. In this paper, we present our framework and our preliminary prototype, by also providing some hints on future work.
2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010
AbstractA wide variety of applications aimed to im-prove road safety and traffic efficiency or t... more AbstractA wide variety of applications aimed to im-prove road safety and traffic efficiency or to provide com-fort/entertainment to passengers in vehicles are intended to be delivered in VANETs (Vehicular Ad hoc Networks) in the near future. Most of these applications require ...
The research on the Internet of Things (IoT) has made rapid strides towards the definition of a g... more The research on the Internet of Things (IoT) has made rapid strides towards the definition of a global network of interconnected objects. Some IETF Working Groups are giving major contributions in this direction by standardizing an IPv6-based framework for resource-constrained nodes. Although this solution handles different constrained networks' devices, it does not explicitly manage the integration with a key IoT enabler: the RFID (Radio Frequency Identification) technology. In this paper, we propose a CoAP-compliant solution where RFID tags are directly accessible via a reader that acts as a proxy. The RFID tags, behaving as virtual CoAP servers, are included in the IoT realm. Key design aspects are addressed such as tag addressing, service and resource discovery, and mapping of CoAP methods onto RFID commands. Finally, the performance of the proposed solution is evaluated in order to provide useful indications for future deployments.
The research on the Internet of Things (IoT) has made rapid strides towards the definition of a g... more The research on the Internet of Things (IoT) has made rapid strides towards the definition of a global network of interconnected objects. Some IETF Working Groups are giving major contributions in this direction by standardizing an IPv6-based framework for resource-constrained nodes. Although this solution handles different constrained networks' devices, it does not explicitly manage the integration with a key IoT enabler: the RFID (Radio Frequency Identification) technology. In this paper, we propose a CoAP-compliant solution where RFID tags are directly accessible via a reader that acts as a proxy. The RFID tags, behaving as virtual CoAP servers, are included in the IoT realm. Key design aspects are addressed such as tag addressing, service and resource discovery, and mapping of CoAP methods onto RFID commands. Finally, the performance of the proposed solution is evaluated in order to provide useful indications for future deployments.
This paper addresses the radio resource manage- ment of multicast transmissions in the emerging f... more This paper addresses the radio resource manage- ment of multicast transmissions in the emerging fifth gener- ation satellite systems (5G-Satellite). A subgrouping approach is exploited to provide video streaming services to satellite users by splitting any multicast group into subgroups. This allows an effective exploitation of multi-user diversity according to the experienced channel conditions and the achievement of a high throughput level. The main drawback is the high computational cost usually related to the selection of the opti- mal subgroup configuration. In this paper we propose a low- complexity subgrouping algorithm that achieves performance close to optimum. Our solution is suitable for implementation in practical systems, such as Satellite-Long Term Evolution (S- LTE), since the computational cost does not depend on the multicast group size and the number of available resources. Through simulation campaigns conducted in different radio propagation and multicast group en...
Multiple channels have been allocated in the 5 GHz spectrum for vehicular communications worldwid... more Multiple channels have been allocated in the 5 GHz spectrum for vehicular communications worldwide, however, due to the limited allocated bandwidth, simultaneous communications occurring over nearby channels may be affected by adjacent channel interference (ACI). Due to ACI, packet reception may be unsuccessful and transmissions may be delayed. In this work, we investigate the ACI phenomena in multichannel vehicular networks to shed light on their effects, with focus on the transmitter-side. To this purpose, a simple analytical model is introduced along with a preliminary evaluation. Suggestions are also provided about the usage of adjacent channels so to minimize side effects on the communication quality.
Proceedings of IEEE INFOCOM '96. Conference on Computer Communications, 1996
... service seems the most appropriate for the transport of a multimedia service in UMTS. ... wit... more ... service seems the most appropriate for the transport of a multimedia service in UMTS. ... with the main aims of providing: 0 a flexible DRMA bandwidth allocation control mechanism, able ... Anyway, during periods of high congestion of the reservation buffer, voice component can be ...
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Papers by A. Molinaro